Dyfyniad APA

Lafond, C., Welch, B., & Vine, S. (2001). English for negotiating. Oxford (New York): Oxford University Press.

Dyfyniad Arddull Chicago

Lafond, Charles, Birgit Welch, và Sheila Vine. English for Negotiating. Oxford (New York): Oxford University Press, 2001.

Dyfyniad MLA

Lafond, Charles, Birgit Welch, và Sheila Vine. English for Negotiating. Oxford (New York): Oxford University Press, 2001.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.